CN105130330A - Glass fiber cement felt - Google Patents
Glass fiber cement felt Download PDFInfo
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- CN105130330A CN105130330A CN201510405563.3A CN201510405563A CN105130330A CN 105130330 A CN105130330 A CN 105130330A CN 201510405563 A CN201510405563 A CN 201510405563A CN 105130330 A CN105130330 A CN 105130330A
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- glass fiber
- fiber cement
- cement felt
- felt
- mixed slurry
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Abstract
The invention discloses a glass fiber cement felt, which is prepared by uniformly coating one side surface of a glass fiber felt by a mixed slurry material and then drying the mixed slurry material. The mixed slurry material is composed of, by weight, 48-52 parts of cement, 48-52 parts of glue, 295-305 parts of quartz sand, 1.4-1.8 parts of cellulose ether, 0.8-1.2 parts of color paste and water. The thickness of the glass fiber cement felt is not more than 0.35 mm. The glass fiber cement felt is less in thickness and good in breathability, achieves both anti-permeation and strength, is good in flame-retarding performance, is light in weight and is uniform in structure.
Description
Technical field
The present invention relates to the surface lining of thermal insulation layer used for building exterior wall, be specifically related to a kind of glass fiber cement felt.
Background technology
Glass fiber cement felt is widely used in field of heat insulating materials now, as with thermal insulation layer with the use of surface lining, especially better with polyurethane thermal insulation board composite effect.Glass fiber cement felt is slurry is applied (spraying or blade coating) on glass mat when producing, and dries at a certain temperature and can obtain described glass fiber cement felt.When preparing polyurethane composite heat-conservation board, be sprayed on glass fiber cement felt by high pressure foaming machine by the urethane black and white material mixed, after polyurethane foam curing molding, namely glass fiber cement felt surface lining is complex as a whole with polyurethane sheet.
Traditional glass fiber cement felt is in order to ensure urethane black and white material (oiliness) not bleed, and that generally all does is thicker---mean thickness is about 0.5mm; But the production process of urethane is one produces gas and the process of gaseous volatilization.If the thickness of glass fiber cement felt is thicker, will inevitably affect the ventilation property of cement felt, the bubble difficulty volatilization that such plate foaming produces, there is increased number of stomata in the layer of polyurethane that final foaming is formed.
Summary of the invention
The invention provides a kind of glass fiber cement felt, the problem of conventional fiber glass cement felt poor air permeability can be avoided; Glass fiber cement felt of the present invention, under the prerequisite ensureing glass fiber cement felt ventilation property and intensity, can also take into account its perviousness.
Technical solution of the present invention is as follows:
A kind of glass fiber cement felt, the side surface that described glass fiber cement felt is coated in glass mat equably by mixed slurry is made after drying again, it is characterized in that, described mixed slurry is made up of cement, glue, quartz sand, Mierocrystalline cellulose, mill base and water, and each components by weight is as follows:
Cement 48-52
Glue 48-52
Quartz sand 295-305
Mierocrystalline cellulose 1.4-1.8
Mill base 0.8-1.2
Described glass fiber cement felt thickness 0.35-0.40mm.
Each component preferably weight ratio is as follows:
Cement 50
Glue 50
Quartz sand 300
Mierocrystalline cellulose 1.6
Mill base 1.
Cement described in the present invention is P.C32.5 composite Portland cement.
Glue described in the present invention is vinyl copolymer emulsion.
Quartz sand described in the present invention is 320 order levels.
Mierocrystalline cellulose described in the present invention is Vltra tears.
Mill base described in the present invention is aqueous color paste.
In the present invention, each component Action Specification is as follows: cement is inorganic coagulation material, and its effect is to be produced condensation by the fast hydration at initial stage, hardened and set up intensity.Quartz sand, as aggregate, is also the matrix composition of mixed slurry in the present invention; Mixed slurry adopts the quartz sand of ratio described in the present invention, its accumulation body can be made to have space structure and maximum tight packing density the most closely, can reduce gel material content and reduce shrinkage cracking.Vltra tears is a kind of thickening material of good performance, is added on the water retention capacity that slurry can be improved in Liaozhong by mixing, and improves the cohesive strength of mixed slurry.Vinyl copolymer emulsion is a kind of polymkeric substance improving mixed slurry adhesive tensile resistance intensity and high temperature resistant, resistance to chemical attack and water-repellancy.Mill base is used for toning, selects dark mortar then to obtain comparatively dark colour glass fiber cement felt, selects light color then to obtain the glass fiber cement felt of color of paying.
The glass mat that the present invention adopts, as the coating object of mixed slurry, adopts glass mat to be conducive to improving the tension fracture resistance of glass fiber cement felt, makes its easy unwinding and rewinding.Described glass mat belongs to prior art.
Due to the high accounting of cement in traditional glass fiber cement felt mixed slurry, and need in the use procedure of glass fiber cement felt preferentially to meet anti-permeability (if glass fiber cement felt anti-permeability missionary society causes bleed in polyurethane foam process, and then cause the bending and cohesive strength of sheet material to decline) requirement, the thickness of such glass fiber cement felt is limited can not be excessively thin, and thicker glass fiber cement felt can cause very large impact to ventilation property.To compare prior art, superiority of the present invention is: in the mixed slurry of conventional fiber glass cement felt, the weight accounting of cement component often 55 ~ 65% (mentioning) in China patent CN103057215A, and in mixed slurry involved in the present invention, cement accounting reduces to 8.5 ~ 9.5%.The reduction of cement proportion is conducive to the ventilation property improving mixed slurry coat.Compared with prior art, the accounting of quartz sand and glue is improved in the starting material of the mixed slurry of glass fiber cement felt of the present invention.The raising of quartz sand accounting is conducive to the density of mixed slurry coat, has certain effect to the raising of anti-permeability.Therefore, relative to conventional fiber glass cement felt, glass fiber cement felt of the present invention can under the prerequisite reducing thickness, ensure ventilation property, take into account perviousness, namely ensure ventilative and thoroughly do not expect, in polyurethane foam process, gas between felt and urethane can through mixed slurry coat, and foam material can not pass through, and avoids the formation of layer of polyurethane cavity; In the present invention, the high accounting of glue also helps the cohesive strength ensureing glass fiber cement felt.
Glass fiber cement felt of the present invention also maintains the premium propertiess such as traditional glass fiber cement felt flame retardant properties is good, light quality, even structure.
Embodiment
Below by specific embodiment, the present invention is described further.
Embodiment 1
The present embodiment provides a kind of glass fiber cement felt mixed slurry of the present invention, calculate by weight, get 48kgP.C32.5 composite Portland cement, 52kg vinyl copolymer emulsion, 310kg320 order level quartz sand, 1.5kg Vltra tears and 1.1kg aqueous color paste, then add 160kg water and mix; Be sprayed on by mixed slurry on preset glass mat, dry to water ratio≤1% at 230 DEG C after glass mat being sent into after having sprayed baking oven, namely obtain glass fiber cement felt, thickness is 0.35mm.
The performance test results of the glass fiber cement felt of the present embodiment is as follows:
Fracture tensile strength: >=240N/50mm (transverse direction), >=360N/50mm (longitudinal direction);
Air penetrability: >=15mm/s;
Dimensional stability: ~ 0.37% (at 70 DEG C 48 hours), ~ 0.26% (at-30 DEG C 48 hours);
Flame retardant rating: A level;
Product grammes per square metre deviation: ± 21g/m
2.
Embodiment 2
The present embodiment provides a kind of glass fiber cement felt mixed slurry of the present invention, calculate by weight, get 49kgP.C32.5 composite Portland cement, 51kg vinyl copolymer emulsion, 305kg320 order level quartz sand, 1.5kg Vltra tears and 0.9kg aqueous color paste, then add 160kg water and mix; By mixed slurry blade coating on preset glass mat, dry to water ratio≤1% at 230 DEG C after glass mat being sent into after blade coating completes baking oven, namely obtain glass fiber cement felt, thickness is 0.35mm.
The performance test results of the glass fiber cement felt of the present embodiment is as follows:
Fracture tensile strength: >=240N/50mm (transverse direction), >=360N/50mm (longitudinal direction);
Air penetrability: >=15mm/s;
Dimensional stability: ~ 0.34% (at 70 DEG C 48 hours), ~ 0.27% (at-30 DEG C 48 hours);
Flame retardant rating: B1 level;
Product grammes per square metre deviation: ± 20g/m
2.
Embodiment 3
The present embodiment provides a kind of glass fiber cement felt mixed slurry of the present invention, calculate by weight, get 52kgP.C32.5 composite Portland cement, 48kg vinyl copolymer emulsion, 295kg320 order level quartz sand, 1.5kg Vltra tears and 1.1kg aqueous color paste, then add 160kg water and mix; Be sprayed on by mixed slurry on preset glass mat, dry to water ratio≤1% at 230 DEG C after glass mat being sent into after having sprayed baking oven, namely obtain glass fiber cement felt, thickness is 0.35mm.
The performance test results of the glass fiber cement felt of the present embodiment is as follows:
Fracture tensile strength: >=240N/50mm (transverse direction), >=360N/50mm (longitudinal direction);
Air penetrability: >=15mm/s;
Dimensional stability: ~ 0.36% (at 70 DEG C 48 hours), 0.23% (at-30 DEG C 48 hours);
Flame retardant rating: B1 level;
Product grammes per square metre deviation: ± 20g/m
2.
Embodiment 4
The present embodiment provides a kind of glass fiber cement felt mixed slurry of the present invention, calculate by weight, get 50kgP.C32.5 composite Portland cement, 50kg vinyl copolymer emulsion, 300kg320 order level quartz sand, 1.6kg Vltra tears and 1kg aqueous color paste, then add 160kg water and mix; Be sprayed on by mixed slurry on preset glass mat, dry to water ratio≤1% at 230 DEG C after glass mat being sent into after having sprayed baking oven, namely obtain glass fiber cement felt, thickness is 0.35mm.
The performance test results of the glass fiber cement felt of the present embodiment is as follows:
Fracture tensile strength: >=240NN/50mm (transverse direction), >=240NN/50mm (longitudinal direction);
Air penetrability: >=15mm/s;
Dimensional stability: ~ 0.35% (at 70 DEG C 48 hours), ~ 0.23% (at-30 DEG C 48 hours);
Flame retardant rating: A level;
Product grammes per square metre deviation: ± 20g/m
2.
Above technical scheme of the present invention being described in detail, it should be noted that the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; For one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (7)
1. a glass fiber cement felt, the side surface that described glass fiber cement felt is coated in glass mat equably by mixed slurry is made after drying again, it is characterized in that, described mixed slurry is made up of cement, glue, quartz sand, Mierocrystalline cellulose, mill base and water, and each components by weight is as follows:
Cement 48-52
Glue 48-52
Quartz sand 295-305
Mierocrystalline cellulose 1.4-1.8
Mill base 0.8-1.2;
Described glass fiber cement felt thickness 0.35mm-0.40mm.
2. a kind of glass fiber cement felt according to claim 1, is characterized in that, in described mixed slurry, each component is by weight as follows:
Cement 50
Glue 50
Quartz sand 300
Mierocrystalline cellulose 1.6
Mill base 1.
3. a kind of glass fiber cement felt according to claim 1 and 2, is characterized in that: described cement is P.C32.5 composite Portland cement.
4. a kind of glass fiber cement felt according to claim 1 and 2, is characterized in that: described glue is vinyl copolymer emulsion.
5. a kind of glass fiber cement felt according to claim 1 and 2, is characterized in that: described quartz sand is 320 order levels.
6. a kind of glass fiber cement felt according to claim 1 and 2, is characterized in that: described Mierocrystalline cellulose is Vltra tears.
7. a kind of glass fiber cement felt according to claim 1 and 2, is characterized in that: described mill base is aqueous color paste.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510405563.3A CN105130330A (en) | 2015-07-10 | 2015-07-10 | Glass fiber cement felt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510405563.3A CN105130330A (en) | 2015-07-10 | 2015-07-10 | Glass fiber cement felt |
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| Publication Number | Publication Date |
|---|---|
| CN105130330A true CN105130330A (en) | 2015-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201510405563.3A Pending CN105130330A (en) | 2015-07-10 | 2015-07-10 | Glass fiber cement felt |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105948620A (en) * | 2016-04-28 | 2016-09-21 | 安徽瑞联节能科技有限公司 | Method for preparing glass fiber cement felt |
| CN110357502A (en) * | 2019-07-10 | 2019-10-22 | 湖北卓宝建筑节能科技有限公司 | A kind of production method enhancing glass fibre cement base mat |
| CN113563018A (en) * | 2021-08-25 | 2021-10-29 | 四川谦宜复合材料有限公司 | Basalt fiber wet felt facing material and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102535774A (en) * | 2011-12-31 | 2012-07-04 | 江苏长海复合材料股份有限公司 | Thermal insulating polymer composite glass fiber flame-retardant facing material for wall body |
| CN102995780A (en) * | 2012-12-14 | 2013-03-27 | 江苏尼高科技有限公司 | Glass fibre tissue compound heat-insulating plate and preparation method for same |
| CN103057215A (en) * | 2012-12-21 | 2013-04-24 | 南京红宝丽新材料有限公司 | Cement glass fiber felt veneer material and preparation and application method thereof |
-
2015
- 2015-07-10 CN CN201510405563.3A patent/CN105130330A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102535774A (en) * | 2011-12-31 | 2012-07-04 | 江苏长海复合材料股份有限公司 | Thermal insulating polymer composite glass fiber flame-retardant facing material for wall body |
| CN102995780A (en) * | 2012-12-14 | 2013-03-27 | 江苏尼高科技有限公司 | Glass fibre tissue compound heat-insulating plate and preparation method for same |
| CN103057215A (en) * | 2012-12-21 | 2013-04-24 | 南京红宝丽新材料有限公司 | Cement glass fiber felt veneer material and preparation and application method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105948620A (en) * | 2016-04-28 | 2016-09-21 | 安徽瑞联节能科技有限公司 | Method for preparing glass fiber cement felt |
| CN110357502A (en) * | 2019-07-10 | 2019-10-22 | 湖北卓宝建筑节能科技有限公司 | A kind of production method enhancing glass fibre cement base mat |
| CN113563018A (en) * | 2021-08-25 | 2021-10-29 | 四川谦宜复合材料有限公司 | Basalt fiber wet felt facing material and preparation method thereof |
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Application publication date: 20151209 |